Ubuntu 22.04.3 LTS系统中Spyder无法启动的问题求助

问题描述 #

通过sudo apt install spyder安装Spyder 4.2.1后，点击图标无法启动，终端执行spyder命令时触发以下报错：

Update LANGUAGE_CODES (inside config/base.py) if a new translation has been added to Spyder
Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Traceback (most recent call last):
  File "/usr/bin/spyder", line 33, in <module>
    sys.exit(load_entry_point('spyder==4.2.1', 'gui_scripts', 'spyder')())
  File "/usr/lib/python3/dist-packages/spyder/app/start.py", line 213, in main
    mainwindow.main(options, args)
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 3624, in main
    mainwindow = create_window(app, splash, options, args)
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 3482, in create_window
    main.setup()
  File "/usr/lib/python3/dist-packages/spyder/app/mainwindow.py", line 803, in setup
    self.completions = CompletionManager(self)
  File "/usr/lib/python3/dist-packages/spyder/plugins/completion/plugin.py", line 97, in __init__
    plugin_client = Plugin(self.main)
  File "/usr/lib/python3/dist-packages/spyder/plugins/completion/kite/plugin.py", line 50, in __init__
    self.installer = KiteInstallerDialog(
  File "/usr/lib/python3/dist-packages/spyder/plugins/completion/kite/widgets/install.py", line 287, in __init__
    self._integration_widget = KiteIntegrationInfo(self)
  File "/usr/lib/python3/dist-packages/spyder/plugins/completion/kite/widgets/install.py", line 58, in __init__
    image = image.scaled(image_width, image_height, Qt.KeepAspectRatio,
TypeError: arguments did not match any overloaded call:
  scaled(self, int, int, aspectRatioMode: Qt.AspectRatioMode = Qt.IgnoreAspectRatio, transformMode: Qt.TransformationMode = Qt.FastTransformation): argument 1 has unexpected type 'float'
  scaled(self, QSize, aspectRatioMode: Qt.AspectRatioMode = Qt.IgnoreAspectRatio, transformMode: Qt.TransformationMode = Qt.FastTransformation): argument 1 has unexpected type 'float'

已尝试卸载重装、重启系统，问题仍未解决。

修复方案 #

方案1：禁用Kite补全插件（快速生效） #

报错源于Kite插件的参数类型错误，直接跳过该插件启动Spyder：

• 终端执行命令启动：

  spyder --no-kite
  

• 启动后进入工具 > 偏好设置 > 补全，取消勾选Kite相关选项并保存，后续正常启动即可避免触发问题。

方案2：手动修改报错文件（保留插件） #

修改插件代码中参数类型不匹配的问题：

1. 用编辑器打开报错文件（需管理员权限）：

   sudo nano /usr/lib/python3/dist-packages/spyder/plugins/completion/kite/widgets/install.py
   

2. 定位到第58行，将原代码：

   image = image.scaled(image_width, image_height, Qt.KeepAspectRatio,
   

   修改为：

   image = image.scaled(int(image_width), int(image_height), Qt.KeepAspectRatio,
   

3. 保存文件（nano中按Ctrl+O回车确认，Ctrl+X退出），执行spyder即可正常启动。

方案3：安装最新版Spyder（彻底解决） #

apt仓库中的Spyder版本较旧，该问题在后续版本已修复，推荐安装最新版：

1. 卸载旧版本：

   sudo apt remove --purge spyder
   sudo apt autoremove
   

2. 通过pip安装（需先安装python3-pip）：

   pip3 install spyder --user
   

   或通过conda安装（适用于Anaconda/Miniconda用户）：

   conda install -c conda-forge spyder
   

3. 安装完成后执行spyder启动即可。

内容的提问来源于stack exchange，提问作者Michael Ramirez